I am a huge fan of these paired with heatshrink. This is the equivalent of beanie except there is no fear of it pulling apart under stess. You can use a heat gun as it suggests but that method can melt the surrounding insulation. Inside I suggest just using a solder iron and applying heat that way. The coating allows for such and if you are using a heat shrink in tandem it works well and is very efficient. For the amount you get for the prices these are more than worth it. Product comes with solder, plastic sheathing and is compatible with and wiring project you would do!

These worked great for me. I used a heat gun on high. One review said it didn't work for them. You need to make sure you heat it long enough and it will work.

I had a completely different experience than the other reviewer. I was able to get the solder to melt with a heat gun or a butane soldering iron with the blow tip. I thought it worked great and is much faster than soldering and heat shrinking separate. The heat shrink even has glue. I have recommended this product to several friends.

Could not get solder to melt. Tried heat gun on low and high, tried open flame. Either not enough solder, or does not melt/flow. Also tried stranded and solid, large and small Guage. Could not get one good connection. $10.00 down the drain